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You are here: Home1 / Blog2 / LPG Leisure Time3 / Caravanning & Camping4 / How do I carry out a simplified leak check on an LPG cylinder system?

How do I carry out a simplified leak check on an LPG cylinder system?

19. April 2016/in Caravanning & Camping, Grill & BBQ, LPG Everyday, LPG in Private Housholds, LPG Leisure Time, Marine
Approximate reading time: 2 minutes

A simplified leak-tightness check of the cylinder system operated with LPG must be carried out by the operator of a piece of gas equipment, such as barbecue, outdoor heater or radiant heater before each use and after a cylinder replacement.

Of course, all individual components of the system, such as LPG cylinders, pressure regulators, hose assemblies, excess flow devices and gas equipment must be connected – if this is not already the case.

Inhaltsverzeichnis

  • Leak check with leak detector spray
  • Bubbles forming?
  • Leak check with pressure gauge at pressure regulator
  • Black and red pointer at the same position?

Leak check with leak detector spray

You must then perform the following steps to check the leak-tightness of the LPG system:

  1. Close all shut-off fittings on the gas equipment.
  2. Slowly open the gas cylinder valve.
  3. Spray all connections between the LPG cylinder and gas barbecue with foaming means in accordance with EN 14291 (for example leak detector spray).
  4. Do not use an open flame for testing.
  5. Check for leak-tightness by looking for bubbles forming in the foaming agent.
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Check the detachable connections between the LPG cylinder and gas equipment.

Bubbles forming?

If bubbles form, you must re-tighten all connections. If bubbles continue to form after this, you must not put the gas equipment into operation under any circumstances, but must replace the leaky component immediately.

  Which GOK components do I need as a private individual for my gas barbecue?

Please refer to the operating manual of the gas equipment manufacturer. There you can also find information on the leak check.

Leak check with pressure gauge at pressure regulator

In the commercial sector – and increasingly in private – more and more operators are using a pressure regulator with pressure gauge. This helps to check for leak-tightness in an LPG system easily and quickly. The following steps should be followed:

  1. Close all shut-off fittings on the gas equipment.
  2. Then, slowly open the gas cylinder valve.
  3. Pressure gauge without red pointer: The position of the black pointer indicates the current cylinder pressure. Mark the exact position of the black pointer manually.
    Pressure gauge with red pointer: Turn the red pointer to the exact same position of the black indicator to mark the current cylinder pressure.
  4. Then close the gas cylinder valve again and wait for two minutes to allow any temperature equalisation to occur.
  5. Adjust the marking or the red pointer if necessary.
  6. Then adhere to the test time of ten minutes and do not change anything on the LPG system.
  Does the pressure regulator gauge show the filling level of the LPG cylinder?

Black and red pointer at the same position?

The red pressure regulator 05 150 00 has an integrated pressure gauge. In this way, the operator can carry out a leak check on the LPG cylinder system.

Pressure regulator with a red and black pointer on the pressure gauge.

The indicated pressure must not decrease during the testing time, showing that the LPG cylinder system is leak-tight. If the pressure drops during the test time, you should spray all detachable connections with leak detector spray as described above. This allows you to locate the leak.

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Approximate reading time: 8 minutes

Information regarding technical systems

This blog will never ask members of the public or unqualified persons to make changes to or fiddle around with technical systems themselves.

In accordance with the Industrial Safety Regulation (BetrSichV), a qualified person must take care of a system which requires monitoring.

A qualified person is someone who has the specific specialist knowledge required. This knowledge is gained by way of a professional apprenticeship, corresponding professional experience or current occupational activity.

Please note that the texts are based on information, regulations and standards for Germany. Please always check the rules and regulations in the relevant country of destination and consult specialists if necessary.

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